<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>hello,dandan</title>
    <link rel="stylesheet" href="css/main.css">
    <script type="text/javascript" src="lib/jquery-3.2.1.js"></script>

    <script>
        $(document).ready(function () {
           $("h1").html("你好，屁屁~").css("color","#FFF");
        });
    </script>
</head>
<body>
<h1>你好，蛋蛋!</h1>
</body>
</html>